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v UNITED STATES PATENT OFFICE.

WALTER G. GARTH, OF LODEBAR, VIRGINIA.

WAGON-JACK.

SPECIFICATION forming part of Letters Patent No. 276,236, dated April24, 1883.

Application filed February 20, 1883. (No model.)

To all whom it may concern:

Be it known that I, WALTER G. GARTH, of Lodebar, Nelson county,Virginia, have invented a new and useful Improvement in Wagon-Jacks andI do hereby declare that the following is a full and accuratedescription of the same.

My invention relates to that class of wagonjacks wherein the 'jack isprovided with a rack and latch to hold it at the desired elevation, anda lever whereby said jack may be raised step by step or lowered in thesame manner; and it consists, first, in adonhle fulcrum for said lever,whereby a small pivot-pin may be employed and the jack not be disabledwhen,by reason of long use, the pivot-pin shall be weakened or broken;second, in an arrangement of step-pins or studs longitudinally along theside of the jack for engagement with the lever, so that said lever mayengage or disengage by a lateral instead of a longitudinal movement.

That others may fully understand myinvention, I will particularlydescribe it, having reference to accompanying drawings, wherein Figure 1is a perspective view of my invention. Fig. 2 is a vertical centralsection of the same. Fig. 3 is a transverse section.

A is the jack post or frame, provided with a central longitudinalcavity, within which the jack B may slide. At its bottom it is providedwith a foot to stand on theground.

At the top of the jack-post there is a saddle, b, to receive the axle orother object to be raised.

Along one edge of the jack B there is a seriesof ratchet-teeth, d, andin a proper location on the jack-post A there is a pivoted latch, E,adapted to engage with the teeth d when the jack is raised up andprevent its descent until the latch has been forcibly withdrawn fromengagement with said teeth. This may be done, when desired, by means ofthe thumb-piece of said latch, the jack having first been lifted out ofengagement by means of the lever F.

The jack is also provided with a series of studs or teeth, g, whichproject from its side to furnish points of engagement for the end of thelever F.

The jack-post A is provided with a transverse ledge, h, and above saidledge there are sockets to receive the joint-pin t, whereby the lever Fis attached to the jack-post. The lever F,the joint-pin Land the ledge hare all so organized and arranged with reference to each other that saidlever bears upon the ledge it mainly as its fulcrum, but also upon thejoint-pin to a lesser degree. By this means the pin may be made less indiameter than usual, and the principal fulcrum for the lever being arigid ledge constituted by a part of the jack-post itself, there willnever be danger of breaking down the fulcrum in lifting heavy loads. Thejoint pin and ledge are longer than the thickness of the lever F, sothat the latter may have a movement and adjustmentjsidewise to permit itto be easily disengaged from the teeth or studs 9 bya sidewise movement,and, passin g outside others, to engage with another of said studs by acounter sidewise movement.

Having described myinvention, whatIclaim as new isl. The jack-postprovided with the solid fulcruin h, and the lever F, pivoted at 'i, soas to rest also upon the fulcrum h, combined with the jack A, providedalong its side with the studs 9, adapted to engage the short arm of saidlever F and the latch E, substantially as set forth.

2. In a wagon-jack, the post A, provided with a lever, F, fulcrumedthereto, so that it may move sidewise on said fulcrum, combined with ajack, B, provided with studs 9, projecting laterally from its side,whereby the lever may engage or disengage by a sidewise movement uponits fulcrum.

W. G. GARTH.

Witnesses:

R. D. 0. SMITH, AUG. S. JORDAN.

